STUDY ON THE RELATIONSHIP BETWEEN MOISTURE CONTENT AND THERMAL CONDUCTIVITY OF SIO2 FIBER MEMBRANE

Liulei, Liu Wei–jun, Ding Xiu–peng

Abstract: On the basis of testing the SiO2 fiber membrane material, the relationship between the moisture content of the SiO2 fiber membrane and the thermal conductivity is obtained. The results show that the thermal conductivity of SiO2 fiber membrane increases slowly with the increase of moisture content first and then increases rapidly, and then tends to be stable and slow. The thermal conductivity of SiO2 fiber membrane is minimum in the case of almost no water, When the moisture content of SiO2 fiber membrane is higher than 20%, the thermal conductivity increases rapidly with the increase of moisture content, the maximum thermal conductivity occurs when the moisture content of SiO2 fiber membrane is about 46.67%, the thermal conductivity of SiO2 fiber membrane tends to be stable between 46.67% and 100% of its moisture content.

Keywords: SiO2 Fiber Membrane; Moisture Content; Thermal Conductivity

DOI: https://doi.org/10.15623/ijret.2018.0701001